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🔧 Screw it right, screw it tight — the pro’s choice for flawless fastening!
These M3 x 12mm socket head cap screws feature a bright finish and are crafted from durable 304 stainless steel, offering full threading and an Allen hex socket drive. Ideal for professionals and DIYers alike, this 100-piece set delivers corrosion resistance and precision fit for reliable fastening in wood, metal, and wet environments.







| ASIN | B07KRRNDGC |
| Best Sellers Rank | #27,618 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #196 in Socket Head Screws |
| Brand | MewuDecor |
| Color | Silver |
| Compatible Groove Diameter | 3 millimeters |
| Customer Reviews | 4.7 out of 5 stars 855 Reviews |
| Drive System | Internal Hex |
| Exterior Finish | Stainless Steel |
| Fastener Size | M3 |
| Fastener Type | Machine Screw |
| Finish Types | Bright Finish |
| Head Style | Socket |
| Head Type | Socket |
| Item Diameter | 3 millimeters |
| Manufacturer | MewuDecor |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Metal Type | Stainless Steel |
| Model | SHCS.M312-100 |
| Number Of Items | 100 |
| Number of Pieces | 100 |
| Outside Diameter | 3 millimeters |
| Part Number | SHCS.M312-100 |
| Point Style | Flat Point |
| Screw Head Style | Socket |
| Screw Point Style | Flat Point |
| Set Name | M3 x 12mm Socket Head Cap Screws (100 Piece) |
| Set Screw Thread Type | Metric |
| Size Name | M3 x 12mm |
| Thread Coverage | Fully Threaded |
| Thread Size | m3-0.5 |
| Thread Style | Right Hand |
| Thread Type | Metric |
| UPC | 723585251871 |
| Unit Count | 100 Count |
M**R
Great seller and great product!
Great value and great product.
R**O
Great for carbs
I bought these to replace my float bowl screws on my Mikuni carburetor. They worked great but I had to order 50 which is way more than i will ever use but for the price, is better than buying 4 from a bolt store and then having them shipped.
B**L
Good for motorized bicycle
Good quality, come in a little sticky box,I use these for motorized bicycle engine/magneto cover bolts,fit perfectly
K**R
Clean threads and great for meshtastic designs.
I use these MewuDecor M3 x 8mm screws for all my 3D printed Meshtastic cases. The 8mm length is just right for securing most lids and mounting plates without bottoming out. Since they are 304 stainless steel, I don't have to worry about them rusting when I deploy a node outdoors. They have a nice bright finish that looks professional.
J**K
Good bolts, smooth threading - corrosion resistance?? Only time will tell.
These seem fine, but are mildly magnetic. I used these with stainless lock rings to replace the six bolts fastening my outboard's VST float tank. (Original Yamaha bolt PN 63P-14567-00-00, found on many four-stroke models.) The original Yamaha bolts are infamous for corroding and getting very stuck - even if these new bolts corrode a bit, it's sure to be a vast improvement over the original.
D**N
Check your size carefully!
Fabulous bargain for top notch screws. Unfortunately, the labeling and my measurements didn't jive and it turns out they were not the right size. Pay close attention! I'll find a use for them somewhere.
S**R
Perfect fit and no hassle refund policy made my day
Item as described and comes in a secure box except my box was partially damaged while shipping. But I am happy that Amazon had refunded me without any issues. Thanks to Amazon and the seller.
M**H
Good
There cool
R**.
Perfect fit
Perfect fit as replacement screws for my joystick on my Spyder XL power chair!
M**R
It is what it is.
It is what it is.
S**K
Nice product
Well made product, worked great
D**K
Great parts
I use them on one of my telexcope to lock the focusser in place, it replaced a chrome plated one.
Trustpilot
5 days ago
1 month ago